Good Qs. I'd be interested to know myself. I'd heard a story that someone key to the process had passed away...
I have to relay a story someone in the 'in' once told me: he said that P-160 was good but most of soap worship came from that fact that it was discontinued. Even if it's exactly the same soap made by the same people - I very much doubt that new P-160 will please every old-version P-160 worshipper. The debates will continue....
I don't know how being on the "in" would make that comment insightful; that is simply one person's opinion. I think the buying spree that occurred is pretty common among favored products that are being discontinued. And P-160 had plenty of fans when it was being produced. If Williams was discontinued tomorrow, I doubt there would be any rush to hoard pucks.